Tracheostoma filter



FIG. 1 is a front perspective view showing my new design for a tracheostoma filter,

FIG. 2 is a rear view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view with the opposite side being a mirror image thereof;

FIG. 6 is a front perspective view of an alternate embodiment showing my design for a tracheostoma filter;

FIG. 7 is a rear view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a top view thereof; and,

FIG. 10 is a right side view with the opposite side being a mirror image thereof. 

The ornamental design for a tracheostoma filter, as shown and described. 